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Emergency HVAC Contractors in Largo, FL (2026)

Top 50 of 688 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

If you smell gas, leave the building now and call your gas utility or 911 from outside.

The short answer

  1. 1

    #1 for emergency heating and cooling in Largo: United Air Conditioning, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency HVAC contractors in Largo at a glance

Top emergency HVAC contractors in Largo at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1United Air Conditioning664.9★ (1,327)Largo24/7
2ABC Plumbing, Air, Heat & Electric654.6★ (2,379)Largo24/7
3Performance Air Conditioning, Electrical & Plumbing654.7★ (3,491)Clearwater, 5 mi away24/7
4Paradise Air Inc654.9★ (608)Largo24/7
5Adirondack Services Cooling and Heating644.8★ (744)Largo24/7
6FAST of Florida644.8★ (1,851)Clearwater, 5 mi away24/7
7One Hour Air Conditioning & Heating644.8★ (725)Largo24/7
8Pleasant AC644.9★ (1,065)Clearwater, 4 mi away24/7
9Egberts Air Conditioning & Heating Repair644.9★ (496)Largo24/7
10Hurricane Air & Restoration644.9★ (478)Largo24/7

Call an emergency HVAC contractor in Largo now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency HVAC contractors in Largo, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 688 is on the HVAC contractors page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  4. #4 Paradise Air Inc

    Based in Largo

    65/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.9★ from 608 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 608 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1590 Seminole Blvd, Largo, FL 33770
    View profile for Paradise Air Inc(727) 365-2694

  6. #6 FAST of Florida

    Based in Clearwater, 5 mi away

    64/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.8★ from 1,851 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 1,851 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    13101 56th Ct N # 813, Clearwater, FL 33760
    View profile for FAST of Florida(727) 273-7810

  8. #8 Pleasant AC

    Based in Clearwater, 4 mi away

    64/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 1,065 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,065 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    13831 US Hwy 19 N, Clearwater, FL 33764
    View profile for Pleasant AC(727) 510-2032

  13. #13 ARS / Rescue Rooter

    Based in St. Petersburg, 7 mi away

    64/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.5★ from 4,066 Google reviews, listed on Google as “HVAC contractor”.

    • 4.5★ from 4,066 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3340 Scherer Dr Suites A&B, St. Petersburg, FL 33716
    View profile for ARS / Rescue Rooter(813) 626-4552

  17. #17 Smart Heating & Cooling

    Based in Pinellas Park, 8 mi away

    63/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.9★ from 929 Google reviews, listed on Google as “Air conditioning contractor”.

    • 4.9★ from 929 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4255 73rd Ave N, Pinellas Park, FL 33781
    View profile for Smart Heating & Cooling(855) 682-0402

  18. #18 Total Air Inc.

    Based in St. Petersburg, 10 mi away

    63/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.8★ from 1,765 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 1,765 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3100 39th Ave N, St. Petersburg, FL 33714
    View profile for Total Air Inc.(727) 888-2922

  22. #22 And Services

    Based in Tampa, 18 mi away

    63/100CR Score

    Ranked #22 because of its Google rating and review volume: 4.6★ from 10,363 Google reviews.

    • 4.6★ from 10,363 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5010 N Cortez Ave, Tampa, FL 33614
    View profile for And Services(813) 445-4818

  25. #25 Hales AC

    Based in St. Petersburg, 7 mi away

    63/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.7★ from 857 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 857 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4700 95th St N, St. Petersburg, FL 33708
    View profile for Hales AC(727) 386-8956

Top 50 of 688 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

HVAC contractors in Largo, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Gulf Coast Heating & AC, LLC624.9★ (604)8 mi
27Vinson Heating & Cooling.624.9★ (925)11 mi
28Super Heat, Air, And Plumbing624.7★ (3,874)16 mi
29Veterans AC & Heat Inc.624.9★ (520)9 mi
30Eskimo Bros A/C & Heating624.8★ (361)5 mi
31Really Professional625.0★ (334)8 mi
32Len's Air Conditioning624.8★ (127)In Largo
33Caliber Heating & Cooling LLC625.0★ (211)6 mi
34AireWave Heating and Cooling625.0★ (141)4 mi
35Sevier & Heating Air Conditioning Service625.0★ (231)7 mi
36AM Aire Inc624.9★ (81)In Largo
37B&B Professional Plumbing & Air624.7★ (175)2 mi
38Blue Collar Heating & Cooling624.9★ (668)12 mi
39Veterans AC & Heat Inc.624.9★ (1,522)16 mi
40Rolando's H.V.A.C.624.9★ (1,561)17 mi
41Kron & West, Inc614.8★ (569)11 mi
42Weatherproof Cooling & Heating LLC614.9★ (67)In Largo
43Cox Heating & Air Conditioning614.5★ (381)6 mi
44Momentum AC & Electric614.9★ (1,288)19 mi
45Williams Air Solutions615.0★ (56)2 mi
46Superior Heating and Cooling Management., Inc.614.5★ (1,062)12 mi
47D & W Heating & Air Conditioning615.0★ (173)9 mi
48Weathermakers614.9★ (153)8 mi
49Precision Air conditioning & Refrigeration Inc.614.7★ (193)7 mi
50Value Air and Heat HVAC St Petersburg615.0★ (295)13 mi

How we ranked emergency HVAC contractors in Largo

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Largo: questions

Which HVAC contractors in Largo are open 24/7?

25 on this list post 24/7 hours, including United Air Conditioning, ABC Plumbing, Air, Heat & Electric, Performance Air Conditioning, Electrical & Plumbing, Paradise Air Inc and Adirondack Services Cooling and Heating.

Who is ranked #1 for emergency heating and cooling in Largo, FL?

United Air Conditioning is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in Largo ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the HVAC contractor arrives?

If you smell gas, leave the building now and call your gas utility or 911 from outside.

How many emergency HVAC contractors here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Largo

  1. October 2026: CR Scores recalculated for 688 hvac contractors serving Largo.
  2. October 2026: 4 duplicate listings merged.

More emergency and heating and cooling pages